Powder spray booth



FIG. 1 is a front view of a powder spray booth;

FIG. 2 is a front perspective view of the powder spray booth of FIG. 1; and,

FIG. 3 is a top plan view of the powder spray booth of FIG. 1.

The broken lines illustrate portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for a powder spray booth, as shown and described. 